Nov 10, 2018

Understanding Ephemeral storage

Ephemeral storage, as its name suggests, exists only as long as the instance it is associated with. If and when the user decides to delete the instance, the ephemeral storage is destroyed along with it. This is in contrast to persistent storage which remains in existence even if it is not currently being used by an instance. Persistent storage can thus be reused across instances and is priced separately while ephemeral storage is tied to each instance and is included in the instance charges.

Users familiar with PC storage might think of ephemeral storage as akin to a PC's internal disk drives; persistent storage can be considered similar to an external USB drive.